(Cup) Heat-resistant glass. Maximum temperature differential: 120℃ / 248℉. Microwave and dishwasher safe. Use only for its intended purposes. Do not overheat in the microwave or heat without water. Wash with care. Do not use abrasive cleansers or steel wool. Sudden temperature change may break or shatter the product.
(Lid, Strainer) Copolyester. Upper temperature tolerance: 100℃ / 212℉. Dishwasher safe. Do not use in a microwave. When using a dishwasher, please store it in the upper basket to avoid force and weight applied to it. Do not place near open flames. Do not use abrasive cleansers or steel wool. Do not use the product with citrus fruit juices as it may deteriorate due to terpene contained in the fruit's skin.